The grille detail of the 2015 Cadillac ATS coupe as it is unveiled during a press preview at the North American International Auto Show January 14, 2014 in Detroit, Michigan. AFP PHOTO/Stan HONDASTAN HONDA/AFP/Getty Images

STAN HONDA - AFP/Getty Images

The General Motors Co. (GM) Cadillac 2015 Escalade sports utility vehicle (SUV) is displayed during the the 2014 North American International Auto Show (NAIAS) in Detroit, Michigan, U.S., on Monday, Jan. 13, 2014. General Motors Co.'s Chevrolet brand swept the North American Car and Truck of the Year awards at the Detroit auto show today with its Corvette Stingray sports car and Silverado pickup. Photographer: Andrew Harrer/Bloomberg

Andrew Harrer - Bloomberg

Andrew Smith, executive director of Global Cadillac design, introduces the 2015 Cadillac ATS coupe during a press preview at the North American International Auto Show January 14, 2014 in Detroit, Michigan. AFP PHOTO/Stan HONDASTAN HONDA/AFP/Getty Images

STAN HONDA - AFP/Getty Images

Andrew Smith, executive director of Global Cadillac design, introduces the 2015 Cadillac ATS coupe during a press preview at the North American International Auto Show January 14, 2014 in Detroit, Michigan. AFP PHOTO/Stan HONDASTAN HONDA/AFP/Getty Images

STAN HONDA - AFP/Getty Images

Andrew Smith, executive director of Global Cadillac design, introduces the 2015 Cadillac ATS coupe during a press preview at the North American International Auto Show January 14, 2014 in Detroit, Michigan. AFP PHOTO/Stan HONDASTAN HONDA/AFP/Getty Images

STAN HONDA - AFP/Getty Images

Members of the media get a look at the 2015 Cadillac ATS coupe during a press preview at the North American International Auto Show January 14, 2014 in Detroit, Michigan. AFP PHOTO/Stan HONDASTAN HONDA/AFP/Getty Images

STAN HONDA - AFP/Getty Images

DETROIT, MI - JANUARY 14: Workers clean the Cadillac exhibit at the press preview of the 2014 North American International Auto Show January 14, 2014 in Detroit, Michigan. Approximately 5000 journalists from more than 60 countries are expected to attend. The 2014 NAIAS opens to the public on January 18th and ends January 16th. (Photo by Bill Pugliano/Getty Images)

Bill Pugliano - Getty Images

Andrew Smith, executive director of Global Cadillac design, speaks during a press preview at the North American International Auto Show January 14, 2014 in Detroit, Michigan. AFP PHOTO/Stan HONDASTAN HONDA/AFP/Getty Images

STAN HONDA - AFP/Getty Images

Andrew Smith, executive director of Global Cadillac design, speaks during a press preview at the North American International Auto Show January 14, 2014 in Detroit, Michigan. AFP PHOTO/Stan HONDASTAN HONDA/AFP/Getty Images

STAN HONDA - AFP/Getty Images

The 2015 Cadillac ATS coupe is unveiled during a press preview at the North American International Auto Show January 14, 2014 in Detroit, Michigan. AFP PHOTO/Stan HONDASTAN HONDA/AFP/Getty Images

STAN HONDA - AFP/Getty Images

The 2015 Cadillac ATS coupe is unveiled during a press preview at the North American International Auto Show January 14, 2014 in Detroit, Michigan. AFP PHOTO/Stan HONDASTAN HONDA/AFP/Getty Images

STAN HONDA - AFP/Getty Images

The 2015 Cadillac ATS coupe is unveiled during a press preview at the North American International Auto Show January 14, 2014 in Detroit, Michigan. AFP PHOTO/Stan HONDASTAN HONDA/AFP/Getty Images

STAN HONDA - AFP/Getty Images

The 2015 Cadillac ATS coupe is unveiled during a press preview at the North American International Auto Show January 14, 2014 in Detroit, Michigan. AFP PHOTO/Stan HONDASTAN HONDA/AFP/Getty Images

STAN HONDA - AFP/Getty Images

Members of the media get a look at the 2015 Cadillac ATS coupe during a press preview at the North American International Auto Show January 14, 2014 in Detroit, Michigan. AFP PHOTO/Stan HONDASTAN HONDA/AFP/Getty Images

STAN HONDA - AFP/Getty Images

Members of the media get a look at the 2015 Cadillac ATS coupe during a press preview at the North American International Auto Show January 14, 2014 in Detroit, Michigan. AFP PHOTO/Stan HONDASTAN HONDA/AFP/Getty Images

STAN HONDA - AFP/Getty Images

Members of the media get a look at the 2015 Cadillac ATS coupe during a press preview at the North American International Auto Show January 14, 2014 in Detroit, Michigan. AFP PHOTO/Stan HONDASTAN HONDA/AFP/Getty Images

STAN HONDA - AFP/Getty Images

Michigan Gov. Rick Snyder, left, behind the wheel of a Cadillac ELR, shares a laugh with Timothy Lee, Executive VP Global Management Company (GMC) during a walk through of the auto show on Tuesday, Jan. 14, 2014 in Detroit. Snyder says the state manufactured more than 2 million cars last year, a nation-leading number that's more than double the industry's dark days of 2009 and the highest level since 2005. (AP Photo/Detroit News, Daniel Mears)

Daniel Mears - AP

Andrew Smith, executive director of Global Cadillac design introduces the 2015 ATS coupe is shown during media previews during the North American International Auto Show in Detroit, Tuesday, Jan. 14, 2014. (AP Photo/Paul Sancya)

Paul Sancya - AP

Andrew Smith, executive director of Global Cadillac design introduces the new Cadillac logo during media previews during the North American International Auto Show in Detroit, Tuesday, Jan. 14, 2014. (AP Photo/Paul Sancya)

Paul Sancya - AP

The new Cadillac logo is shown on the 2015 ATS coupe during its debut at media previews during the North American International Auto Show in Detroit, Tuesday, Jan. 14, 2014. (AP Photo/Paul Sancya)

Paul Sancya - AP

The new Cadillac logo is shown on the 2015 ATS coupe during its debut at media previews during the North American International Auto Show in Detroit, Tuesday, Jan. 14, 2014. (AP Photo/Paul Sancya)

Paul Sancya - AP

The General Motors Co. (GM) Cadillac 2015 Escalade sports utility vehicle (SUV) is displayed during the the 2014 North American International Auto Show (NAIAS) in Detroit, Michigan, U.S., on Monday, Jan. 13, 2014. General Motors Co.'s Chevrolet brand swept the North American Car and Truck of the Year awards at the Detroit auto show today with its Corvette Stingray sports car and Silverado pickup. Photographer: Andrew Harrer/Bloomberg

Andrew Harrer - Bloomberg

The General Motors Co. (GM) Cadillac 2015 Escalade sports utility vehicle (SUV) is displayed during the the 2014 North American International Auto Show (NAIAS) in Detroit, Michigan, U.S., on Monday, Jan. 13, 2014. General Motors Co.'s Chevrolet brand swept the North American Car and Truck of the Year awards at the Detroit auto show today with its Corvette Stingray sports car and Silverado pickup. Photographer: Andrew Harrer/Bloomberg